不同类型砂体储量物性参数研究

【作者】 李艳杰；

【导师】 刘吉余；

【作者基本信息】 大庆石油学院 ， 矿产普查与勘探， 2005， 硕士

【摘要】 石油、天然气储量是石油和天然气在地下的蕴藏量,它是油、气田勘探开发成果的综合反映。因此,石油、天然气储量计算的准确与否至关重要。为提供可靠的石油、天然气储量,选择适合该油、气田实际情况的储量计算方法[1]。综合运用储层沉积学、开发地质学、测井地质学以及高分辩率层序地层学原理,以大型河流—三角州沉积特有的沉积规律和沉积模式为指导,进行精细地质描述研究,确定研究区砂体类型和不同类型砂体的分布特征。在此基础上,确定不同类型砂体的储量物性参数及其分布特征。研究注水开发后物性参数影响变化因素,采用数学地质、地质统计学的方法将上述各项物性参数恢复到原始状态下,以保证地质储量精细计算的需要。 油气储量计算的方法有很多[1、2],容积法是利用油田静态资料计算储量的一种方法。我们在细分沉积单元后,根据具体的砂体类型,对单井及井组的地质储量进行精细计算。我们取得了以下进展:: 1. 采用三角网法确定单井控制面积。 2. 单井及井组地质储量计算方法利用油田开发静态数据库资料,可以计算出单井不同类型砂体的地质储量。 3. 实现了单井地质储量的计算,进而能够了解单井地质储量分布状况。 4. 储量计算区块面积计算方法完全可以取代传统的面积计算方法更多还原

【Abstract】 Petroleum and gas reserves,which are compositive reflection of oil and gas expioration , are storage of oil and gas underground. So it is very important to calculate the reserves accurately. We choose proper method for different pools because we should offer accurate reserves calculation. Using the data from logging in a net of high density, the sand core from a airtight well, and the testing data for oil and gas , and then according to the experiment of exploitation, we studied the deposit visage in macroscopical way, the physical characteristics of the reservoir, and the partition of the oil and gas’s border. It is clear that the zero group of Sa’s oil floor is mainly deposit in the foreside of a delta under the background of lake incursion, and the ventro-delta express a character that there were some sandstones which was transited for two times. Make a certain that the oil and gas’s border of zero group in Sa, and tell us that it lies in the top of the anticline. Of course, this production can be used in the designing of the zero group of Sa’s exploitation There are many kinds of reserves’ calculation. Volume method is one method which will use static state data. We calculate single well’s or wells’ reserves on the base of different sand body after sedimentation units are subdivided. We get some progression:: 1. calculate single well’s area with triangle nets 2. calculate single well’s or wells’ reserves with static state data, we can get the reserves of different kinds sand body 3. we can use this method get single well’s reserves, and could see the distribution of single well’s reserves 4. this method which is used to calculate the area of wells may replace the old methods更多还原